"Map of San Diego County Lakes...Southern Cleveland National Forest California" (San Diego, CA: Produced by Triumph Press), 1971, Sub-Series 1.4, Box: 8, Folder: 4. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6887 Accessed November 15, 2024.